diff --git a/EleasticSearchTool/pom.xml b/EleasticSearchTool/pom.xml
index 2d7c25d..ad52ec8 100644
--- a/EleasticSearchTool/pom.xml
+++ b/EleasticSearchTool/pom.xml
@@ -15,7 +15,7 @@
 
     <properties>
         <elasticsearch.version>6.3.0</elasticsearch.version>
-        <gson.version>2.8.2</gson.version>
+        <gson.version>2.8.9</gson.version>
         <common.version>3.4</common.version>
         <slf4j.version>1.7.7</slf4j.version>
     </properties>